@SpringBootApplication

public class Application {

​

    public static void main(String[] args) {

        SpringApplication.run(Application.class, args);

    }

​

    @Bean

    public NewTopic topic() {

        return TopicBuilder.name("topic1")

                .partitions(10)

                .replicas(1)

                .build();

    }

​

    @KafkaListener(id = "myId", topics = "topic1")

    public void listen(String in) {

        System.out.println(in);

    }

​

}